Heater.



No. 687,I78.

Patented Nov. l9, l90l.

J. DAMEY 81. W. H. CORK.

HEATER.

(Aainlieation filed Mar. 6, 1901.

(No Model.)

:HIH :1 I I nl il hfl i i 4 Sheets-Sheet I.

H .1. MIN.

fiaewrd RRIS PETERS 00., Pmflqumo WASHINGTON 0. c4

No. 687,|78. Patented Nov. I9,v l90l. J. DAMEY &. W. H. $03K.

HEATER.

(Applieationflled Mar. 6, 1901.) (No Model.) 4 Sheets-Sheet-Z.

THE No'nms PETERS c0. PHOTO-LIIHO. wasnmumu. a c.

Patented Nov. l9, I901.

J. DAMEY & W. H. CORK.

HEATER.

' (Application filed Mar. 6, 1901.)

(No lllodeLj 4 Sheets-Sheet 3.

wfyi cams PETERS co PHD v No. 687,!78. Patented Nov. l9, mm,

' J. nAmava w. CORK.

HEATER.

(Application filed Mar. 6, 1901.). 1

mo Model.) I 4 Sheets-Shaet 4.

| WASHINGTON. n. c.

Nl-TED STATES PATENT OFFICE.

JAMES DAMEY AND WILLIAM H. CORK, OF CHICAGO, ILLINOIS, ASSIGNORS OF ONE-THIRD TO N. S. BOUTON, OF CHICAGO, ILLINOIS.

- HEATER.

srncrrrcnrrow forming part of Letters are No. 687,178, dated November 19, 1901 Application filed March a. 1901. seraino. 50,043. pummel.)

To all whom it may oonccrw Be it known that we, J MEs DAMEY and WILLIAM H. CORK, citizens ofthe United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and usefullmprovements in Heaters, of which the following is a specification.

Our invention, though notlimited thereto, relates particularly to heaters having connect- :0 ed therewith a steam or hot-water heating circuit and a separate hot-water-supply'circuit.

Our primary object is to provide a heater of this nature of large capacity and suitable for domestic, store, and factory purposes, particular attention being paid to economy of operation for all seasons of the year.

In the preferred construction there is employed an inner annular combined fuel-mag- 2o azine and water-heater for supplying hot water to the bath, lavatories, sinks, &c., an outer annular water-heaterlfor supplying hot water to the radiators, connections whereby the inner heater may be employed to supply the radiators in fall or spring, when little heat is required, and means for converting the furnace from large tosmall capacity for use in the manner last indicated.

In the drawings, which illustrate our invention in its preferred form, Figure 1 represents a vertical section of the heater; Fig. 2, a similar section of a modified form of the heater and showing the same arranged for fall or spring use; Fig. 3, a transverse broken sec- 3 5 tion of a magazine extension employed at the lower end of the fuel-magazine for converting the heater from large capacity to small capacity; Figs. 4 and 5, transverse sections taken as indicated at the corresponding lines of Fig. 1; Fig. 6, a broken vertical section showing a modified form of base for the heater; Fig. 7, a sectional View of a modification, and Fig. 8 a view of a detail thereof.

A represents aheater-base; B, an annular Water-chamber, of well-known general construction, supported thereon; C, a grate forming with the lower portion of the inner wall of the water-chamber B a combustion-chamber; D, an annular water-chamber supported by an annular flange a, provided with combustion-product passages a, said chamber D in the preferred construction extending to withinten or'twelve inches of the grate C; D, Fig. 2, a removable magazine extension with which the lower end of the chamber D isequipped; D ,"an extension for the upper end of the chamber D and equipped with a lid'D E, a drum inclosing the chamber B and supported on the base A; E E vertical partitions within the chamber between the drum E and the outer wall of the chamberB; E a half-annular baffle-plate inclosing the upperend of that portion of the outer annular flue which is adjacent to the smokestack; F, a top wall through which the extension D projects; G, a smoke-stack provided with branch pipes G G H, the outgoing or hot-water-supply pipe connected with the chamber D; .H, the return-pipe for said chamber, the same extending through a pipe bot-larger diameter, which forms atransverse passage therefor at the base of the heater; Ifthe outgoing or hot-water pipes connected with the chamber B; I, the returnpi'pe therefor; 1 a pipe connected with the return I and leading to the expansion-tank (not shown) with which a heating system of this kind is ordinarily provided; J, a firedoor; J, a passage leading therefrom to the chamber B, and J a removable chute leading from the inner end of the passage J to the removable fire-pot D. In the construction shown in Fig. 2 the top plate F is surmounted by an annular water or steam chamber K, and the connection of the pipe I with the chamber B is through the chamber K and a pipe K, connecting the chambers K and B. The pipe H is connected with the pipe I through a pipe L, supplied with a valve L. The pipes H' and I are connected by a pipe M, supplied with a valve M. The pipe H connects with a city main or other source of water-supply having a considerable pressure. The pipe I is ordinarily connected with a low-pressure supply. It is 5 preferably equipped with a valve M?. The pipe I is equipped with a valve 0. Assuming the valve 0 to be open, the supplyv of water in the expansion-tank ofthe heating systern can be replenished at will by opening the 10::

valve M. When desired, the hot-water or steam supply from the chamber D can be sent through the heating system by shutting the valves 0 and M and opening the valves L and M.

In Figs. 1 and 2 portions of the chambers D and B are broken away to expose the rear vertical dividing-wall E of the outer annular flue. As will be seen, the lower ends of the dividing-walls E E are located some distance above the lower end of the drum B, whereby base-passages are afforded within said drum, through which the products of combustion. pass. The extension D is provided with a door or damper N on the side adjacent to the branch pipe G, and the pipe G is provided with a damper N. In the Winter, when the chamber D acts as a fuel-magazine, the dampers N and N are closed, and the course of the products of combustion is through the base-passages just described. When the extension D is employed in the summer-time, the chamber D is no longer used as a fuelmagazine, and the dampers N N are open to give a direct draft from the interior of the chamber D to the pipe G.

In the modification shown in Fig. 6 the chamber D is continued down through the grate O, the latter being made annular in form for the purpose, and aseparate grate C is pro vided for the base of the chamber D. In this construction the removable extension D is dispensed with and the grate C is made rotatable. I-Iere separate fire'doors (one being shown) are provided, one above each of the grates. It will appear that greater heatingsurface for the chamber D is acquired in this construction, but that features of advantage present in the other construction are lost here. The advantage of having separate circuits is still retained, and the feature of a heater of small capacity for summer use is not sacrificed.

In the modification of Fig. 7 the chambers B and D are shown connected by pipes 71 and 7.: with the chamber K, and provision is thereby made for an equalization of the heat. An additional feature is that of a drum R, separated by a space or flue Zfrom the chamber D, and an annular damper R at the top of said flue and operated by a rod R The damper has passages Z, and the flange a has passages Z with which the passages Z may be brought into registration. Fig. 8 shows the damper closed. It will thus be seen that a damper-controlled annular flue adjacent to the chamber D is provided, whereby the heat contributed to said chamber may be regulated when the heater is being used as a baseburner.

The operation may be briefly summarized: For fall or spring use the extension D may be put in place, said extension being formed in longitudinal sections m m, as shown in Fig. 3, for the purpose of facilitating insertion and removal. The dampers N and N are opened to give a direct draft from the chamber D, and the chute J is put into place for supplying fuel to the inner fire-pot. If it is desired toad mit heat to the heating-circuit, the valves 0 and M are closed and the valves L and M opened. With this arrangement the chamber D can be heated and employed to furnish hot water for the hot -water-supply circuit alone or to both circuits, depending upon the disposition of the valves. For winter use the chamber D is employed as a magazine, the dampers N N are closed, the extension D and chute J" are removed, and the valves L and M are closed and the valves 0 and M opened. With this arrangement the hot-water-supply circuit is kept heated by the chamber D and the heating-circuit is supplied from the chamber B. The half-annular battle-plate and the partitions E and E now serve to direct the products of combustion to the base of the heater, giving the economic advantages of a return-flue boiler. A source of great gain in heating capacity lies in the provision of the water-chamber at the top of the heater, and, moreover, the top plate is protected by means of the circulation of water thereat.

Many heaters are now in operation which are provided with the heater-base and the outer annular Water-chamber; but no provision is made therein for attaining the economical results attributable to our invention. Such a heater can be converted into an improved heater of greatly-increased capacity by means of our invention. The interior parts are supported, as stated, by the flange, which merely rests upon the top of the outer annular water-chamber, and the outer drum and other outer parts can be readily put in place.

Changes in details of construction within the spirit of our invention may be made. Hence no limitation is to be understood from the foregoing detailed description except as shall appear from the appended claims.

What we claim as new, and desire to secure by Letters Patent, is-

1. In a heater having a central fuel-magazine and a combustion-product flue outside said magazine, a damper in the upper end of said magazine, whereby a direct passage through said magazine for the products of combustion may be opened when desired, in combination with means for varying the active grate area, substantially as described.

2. In a heater having a central fuel-magazine, a smoke-stack and a chamber at the top of the heater in direct communication with said smoke-stack, a damper controlling said communication, a damper near the upper end of said magazine for permitting a direct draft therethrough, when desired, and means for confining the products of combustion to cause them to pass to near the base of the heater and thence to the smoke-stack, when said dampers are closed, and means for varying the active grate area, substantially as de scribed.

3. In a heater having an annular chamber for the upward passage of gases and a cooperat-ing annular passage communicating with a IIO smoke-stack, a substantially half-annular top plate for said last-named passage on the side adjacent to the smoke-stack, and vertical partitions beneath the ends of said top plate and extending to near the base of the heater, whereby the products of combustion are confined to return and pass beneath the lower ends of said partitions, substantially as described. V

4. In a heater having a fuel-magazine and an annular chamber above the fire-chamber, an inclosing chamber having vertical partitions and surmounted on one side of said partitions by a substantially half-annular top plate, a smoke stack having a connection above and a connection below said top plate, a damper for the first-named connection, and a damper for said magazine above said top plate, substantially as and for the purpose set forth.

5. A heater of changeable capacity, comprising a central magazine provided near its top with a damper-regulated direct passage, and an inelosing combustion-product flue having a grate at its base, whereby the inner heater may be used alone or in conjunction with the outer heater, substantially as described.

6. In a heater having a central magazine, a damper near the top of the magazine whereby a direct passage therethrough may be opened, and a removable inner fire-pot for confining the fire and reducing the grate capacity, substantially as and for the purpose set forth.

7. In a heater having a central magazine, an annular ascending passage, an inclosing annular passage, having a partial cover and vertical partitions, a top located some distance above said flue-cover and into which said magazine extends, a damper for said magazine above said partial cover, providing for a direct passage, a smoke-stack having a communication above said partial cover and another below the same, a damper for the first-named communication, and a removable inner fire-pot for reducing the grate-surface, when the inner heater is used alone, substantially as and for the purpose set forth.

8. In a heater, the combination of a firechamber, an inner annular water-chamber, a hot-water-su ppl y circuit connected therewith, an outer annular water-chamber, a heatingcircuit connected therewith, a grate, and means for confining the fuel upon said grate to heat said inner waterchamber without heating the outer one, when desired, substanthe heat contributed to said inner water-chamber may be controlled, substantially as described.

JAMES DAMEY. WILLIAM H. CORK. In presence of- A. O. KITTLESON,

ALBERT D. BAOOL 

